8000 Raspberry Pi 5: `<jemalloc>: Unsupported system page size` · Issue #87 · deckhouse/prompp · GitHub
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Raspberry Pi 5: <jemalloc>: Unsupported system page size #87

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markovvn1 opened this issue May 9, 2025 · 3 comments
Open
2 tasks done

Raspberry Pi 5: <jemalloc>: Unsupported system page size #87

markovvn1 opened this issue May 9, 2025 · 3 comments

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@markovvn1
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markovvn1 commented May 9, 2025 •
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Preflight Checklist

  • I agree to follow the Code of Conduct that this project adheres to.
  • I have searched the issue tracker for an issue that matches the one I want to file, without success.

Version

2.53.2-0.2.2

Expected Behavior

Official ARM build of prompp works on Raspberry Pi 5

Actual Behavior

Running the official ARM build of prompp on a Raspberry Pi 5 crashes immediately with

<jemalloc>: Unsupported system page size

Steps To Reproduce

  1. Take Raspberry Pi 5 with Raspbian OS (64 bit).
  2. Install the current ARM image of prompp: 
    docker run -it --rm prompp/prompp:2.53.2-0.2.2
  3. Observe the crash above.

Additional Information

The Pi 5 kernel is built with the default page size is 16 384 bytes:

$ getconf PAGE_SIZE
16384

jemalloc in this project is compiled with the default --with-lg-page=12 (4 KiB). Because the runtime page size is larger than what the allocator was built for, it aborts on initialization.

Logs

<jemalloc>: Unsupported system page size
@markovvn1
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markovvn1 commented May 9, 2025 •
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In the falcosecurity/falco project, a similar problem was fixed by adding the --with-lg-page=14 parameter: falcosecurity/falco#3476 (comment). I suppose we can do the same in here:

prompp/pp/third_party/jemalloc.BUILD

Line 25 in 45fd44c

"--with-lg-page=\"12\"",

@markovvn1
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I have rebuilt the project with the proposed changes (--with-lg-page=14): markovvn1/prompp:2.53.2-0.2.2. It seems to work well. At least on Raspberry Pi 5, memory usage has decreased by half (from 730 MB to 360 MB), while CPU usage has slightly increased.

Before:
Image

After:
Image

@vporoshok
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Hi! Huge thanks for such a detailed research and report. We've taken it into work. We'll try to get back to you with a more detailed response this week, at least in terms of page size adjustments. As for performance, it might take a bit more time.

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